【作者】 冀克俭；

【导师】 汪信； 陆路德； 杨绪杰；

【作者基本信息】 南京理工大学 ， 材料学， 2003， 博士

【摘要】 本论文采用红外光谱、核磁共振波谱、质谱、液相色谱、热分析等分析技术对实际使用的环氧树脂、酚醛树脂以及改性双马来酰亚胺树脂等先进复合材料树脂基体进行了物理化学表征，尤其是对与树脂基体性能密切相关的化学组成与结构、分子量、活性与反应温度、固化度等进行了表征；提出了树脂基体的固化反应机理，获得了树脂基体的固化反应动力学参数；对改性双马来酰亚胺树脂的热分解机理进行了分析，并得到了其热分解动力学数据。 研究了玻璃纤维／环氧树脂预浸料、芳纶纤维／环氧树脂预浸料以及玻璃纤维／酚醛树脂预浸料在储存条件下，树脂基体活性基团含量与储存温度、储存时间的关系及对复合材料力学性能的影响，取得了预浸料体系的质量控制参数。 在大量试验研究的基础上，首次对红外光谱法测定环氧树脂环氧指数试验方法、差示扫描量热法测定环氧树脂反应温度和反应热试验方法、红外光谱法测定酚醛树脂羟甲基指数试验方法、酚醛树脂的高效液相色谱分析方法的不确定度来源进行了分析，对测量方法的不确定度进行了评定，并进行了应用试验。更多还原

【Abstract】 The physicochemical characterization was made in depth using various techniques for some resin matrices of advanced composites, such as epoxy resin matrix, phenolic resin matrix and bismaleimide resin. These techniques include infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), mass spectroscopy (MS), liquid chromatography (LC), thermal analysis (TA) and other techniques. The composition, structure, molecular weight, reactivity, reaction temperature and other properties related to performance of resin matrix were studied. The curing reaction mechanism and kinetic were investigated for the resin matrix. The mechanism of thermal decomposition and the kinetic were analyzed for bismaleimide resin.Evaluation of glass fiber/epoxy prepreg, aramiel fiber/epoxy prepreg and glass fiber/phenolic prepreg quality during storage was made using physicochemical analysis methods. The relation between reactive groups content in resin matrix and exposure temperature and time was studied. The changes of the mechanical properties of the composites made by the prepregs at different stages of the storage were shown. The parameters of quality control for the prepregs were obtained.The source of uncertainty was analyzed in detail about the determination of the epoxide index for epoxy resins by infrared spectroscopy, the determination of the temperature and the heat of the curing reaction for epoxy resins by differential scanning calorimetry, the determination of the hydroxymethyl index for phenolic resins by infrared spectroscopy and the reverse phase method of the high performance liquid chromatography for phenolic resins. The uncertainties of these testing methods were determined. Some applied tests were carried out.更多还原